Do you want to introduce kids to coding? This CANVAS playground is perfect (codeguppy.com)

In the tutorials, it would be nice if you can not press the next button if you didn't run the code at least once.

In the landing page, when I click the image of a tutorial perhaps it must send me to the tutorial. (I can click the start tutorial button, but ...)

Love the Magnetic Needles, Micro Spirograph, Pop Balloons, LavaLamp: they are very cool.

Visual sort is also impressive.

It reminds me all those little programs I used to do in my 10-18 yo days. (I was programming mostly on a Mac with Hypercard, Think Pascal, Resedit back then).

I used to reproduce all the small games I could program (Snake, Tetris, Solitary, Pacman, Breakout...) plus some educational projects (vocabulary quizz, irregular verbs, math plot, fractal drawing)